The usability of three-dimensional (3d) interaction techniques depends upon both the interface software and the physical devices used. However, little research has addressed the issue of mapping 3d input devices to in...
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Two experiments were designed to understand the performance characteristics of human interaction with a virtual environment. In the first experiment, the effects of control feel (isometric vs. isotonic 3dinputdevice...
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Two experiments were designed to understand the performance characteristics of human interaction with a virtual environment. In the first experiment, the effects of control feel (isometric vs. isotonic 3dinputdevice) on tracking performance were measured in a virtual world. The results showed that the isometric device gives better control performance than the isotonic device. In the second experiment, the hypothesis that increased visual depth cues can improve 3d control performance was tested. The presence of binocular depth cues improved tracking performance. However, tracking performance was not significantly improved under perspective depth cues.
The technology of stereoscopic imaging enables reliable online telediagnoses. Applications of telediagnosis include the fields of medicine and in general telerobotics. For allowing the participants in a telediagnosis ...
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ISBN:
(纸本)0819420271
The technology of stereoscopic imaging enables reliable online telediagnoses. Applications of telediagnosis include the fields of medicine and in general telerobotics. For allowing the participants in a telediagnosis to mark spatial parts within the stereoscopic video image, graphic tools and automatism have to be provided. The process of marking spatial parts and objects inside a stereoscopic video image is a non trivial interaction technique. The markings themselves have to be 3d elements instead of 2d markings which would lead to an alienated effect `in' the stereoscopic video image. Furthermore, one problem to be tackled here, is that the content of the stereoscopic video image is unknown. This is in contrast to 3d Virtual Reality scenes, which enable an easy 3d interaction because all the objects and their position within the 3d scene are known. The goals of our research comprised the development of new interaction paradigms and marking techniques in stereoscopic video images, as well as an investigation of inputdevices appropriate for this interaction task. We have implemented these interaction techniques in a test environment and integrated therefore computer graphics into stereoscopic video images. In order to evaluate the new interaction techniques a user test was carried out. The results of our research will be presented here.
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